Ezipex Crimp User manual

TECHNICAL MANUAL
Making life EZI...for Plumbers

CONTENTS
2 Overview
3 Application
4 – 8 Pipe
9 Fittings
10 Features & Benefits
11 – 15 Installation Considerations
16 – 18 Jointing Instructions
19 – 24 EXIPEX™ Crimp Fitting Range
25 EZIPEX™ Crimp Tools
26 – 28 Notes
29 Warranty
Making life EZI...for Plumbers

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Overview
The EZIPEX Crimp™ system was developed to satisfy the
requirements of customers who were seeking an alternative to
our existing EZIPEX Slide™ compression system.
One of the key requirements was the need for a quick and
effective jointing method, combined with the peace of mind
provided by the performance benefits of our EZIPEX™ pipe. It
was also clear that customers had a definite preference to
continue using our existing and already proven EZIPEX™ pipe.
EZIPEX Crimp™ joins EZIPEX Slide™, EZIPEX Push™ and
EZIPEX Gas™ to provide a total solution for all water and gas
applications.
The EZIPEX™ product range is based on a premium quality
cross-linked polyethylene pipe which is used in conjunction with
either of our 3 available ranges of DZR brass fittings, Crimp,
Push and Slide.
All installations should be carried out by an appropriately
licensed tradesperson and in full accordance with the EZIPEX
Crimp™ installation guidelines, the relevant Australian
standards and any additional local authority requirements.
When installed subject to the above conditions the EZIPEX
Crimp™ system will provide years of trouble-free service.

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Application
The EZIPEX Crimp™ system uses a crimping tool to produce a
secure joint in a minimal amount of time. The crimping method
guarantees a perfect seal every time, and eliminates the need
for call backs to repair partially welded joints, etc.
EZIPEX Crimp™ Water fittings may be used in accordance with
AS/NZS 3500 for water applications including:
•Hot and Cold Potable Water,
•Rainwater,
•Recycled Water (non-potable), and
•Hydronic Heating.
For optimum performance results please take the time to
become familiar with the installation considerations outlined on
Pages 11-15 in this booklet.

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Pipe
EZIPEX™ pipe is a high quality PEX-a cross linked
polyethylene pipe. In general terms polyethylene in
its normal state is not capable of handling high
pressure or temperature loads. However once
subjected to the cross-linking process, its ability to
handle these conditions is increased substantially.
EZIPEX™ pipe consists of an inner section of PEX-
a material encased in an outer layer of tough HDPE.
EZIPEX™ also offers a pipe specifically for use in
hydronic heating. This pipe is identified by its
bright orange colour. EZIPEX™ orange pipe is a
similar construction to the standard EZIPEX™
pipe. However, it also incorporates a layer of
EVOH material which acts as an oxygen barrier,
thus preventing the entry of additional oxygen into
the sealed heating system.
EZIPEX™ pipe is available in the following sizes:
DN16, DN20, DN25 and DN32, in either coil form
or straight lengths.
EZIPEX™ pipe is warranted for use with “potable water” and
“glycol solutions” only. Contact your local EZIPEX™ supplier
for more information and applications for use with other fluids.

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EZIPEX™ pipe - standard supply units
Nom
pipe
size
Straight
lengths
(all)
Coil
length
(black)
Coil
length
(red)
Coil
length
(green)
Coil
length
(lilac)
Coil
length
(orange)
16mm 5m
50m
100m
50m
100m
50m
100m
50m 200m
16mm
(In Conduit)
50m 50m
20mm 5m
50m
100m
50m
100m
50m
100m
50m
20mm
(In Conduit)
50m 50m
25mm 5m 50m 50m 50m
32mm 5m 25m
25m
16mm
(Conduit only)
50m
20mm
(Conduit only)
50m
25mm
(Conduit only)
50m
32mm
(Conduit only)
25m

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The EZIPEX™ pipe is colour coded to assist the installer in
avoiding cross connections.
EZIPEX™ pipe dimensions
Nom Size
Mean OD (mm)
Mean Wall Thickness
(mm)
16mm
16.15
2.20
20mm
20.15
2.80
25mm
25.15
3.50
32mm
32.15
4.40
BLACK
Hot & cold potable water
RED
Hot water
GREEN
Rainwater
LILAC
Recycled water (non-potable)
ORANGE
Hydronic heating
CONDUIT
In/under slab hot & cold water

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Performance
The use of EZIPEX™ pipe provides users with many
advantages over traditional piping materials. It has excellent
flexibility, offers a high degree of resistance to damage caused
by freezing, offers excellent pressure and temperature
resistance, is lightweight and also has low noise and heat
transmission qualities. EZIPEX™ pipe provides very low levels
of friction loss and therefore can often save users the need to
upsize piping when installing long runs. As jointing methods are
mechanical, it does not require the use of solvents. Nor does it
require soldering, welding or brazing.
EZIPEX™ pipe heat & pressure performance
AS/NZS 2492
Recommended working pressure
relative to pipe material temperature
Temp (ºC)
20
40
60
70
Pressure (Kpa)
2000
1800
1500
1330

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Cross-section
Black, Red, Green, Lilac pipe
1. Inner layer: combination of HDPE & cross linking agent.
2. Outer layer: HDPE compound. (Note that Red & Green
pipe has two outer layers to meet opacity requirements.)
Orange pipe
1. Inner layer: the same PEX-a layer as standard EZIPEX™
pipe.
2. Middle layer: coloured adhesive to bind internal PEX-a
layer to the external EVOH layer(<0.13mm).
3. Oxygen barrier (<0.01mm). Clear outer layer which
prevents oxygen from permeating through the pipe from the
outside atmosphere.

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Fittings
The bodies of EZIPEX Crimp™ fittings are manufactured from
DZR brass whilst the crimp rings are of a high-quality copper
construction to provide exceptional resistance to corrosion.
All EZIPEX Crimp™ fittings come with sleeve protection plugs
to protect the integrity of the crimp ring during shipping and
storage. Other systems without these plugs are often prone to
problems caused by out-of-shape crimp rings. These sorts of
problems can slow down the installation process considerably.
EZIPEX Crimp™ fittings are manufactured with longer barbs
and crimp rings than many similar products – also adding to the
integrity of each joint.
All EZIPEX Crimp™ fittings are manufactured and certified to
AS/NZS 2537 – mechanical joint fittings for use with EZIPEX
PEX-a pipe for hot & cold water applications.
EZIPEX Crimp™ fitting dimensions
Nom Size
Mean Bore
(mm)
16mm
8.5
20mm
11.2
25mm
14.2
32mm
19.0

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Features and Benefits
Crimp Jointing Method
•Fast
•Secure
•Simple to use
•Less time on the job
•Less capital outlay on tooling
•Internal sealing method reduces
leaks due to scratched pipe
Stock Consolidation
•Same pipe for EZIPEX Push™,
EZIPEX Slide™ & EZIPEX Crimp™
•One pipe 3 systems
Flame-free Assembly
•Increased safety
•No need for gas cylinders or Hot
Works permits
•Reduced costs on welding
consumables
Size Range
DN15 – DN32 •Fittings available for most tasks
Acoustics
•Low noise transmissions in PEX-a
pipe
•Quieter, reduced water hammer

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Installation Considerations
EZIPEX Crimp™ should always be installed in compliance with
AS/NZS 3500. Most installation requirements can be sourced
from this document.
Proximity to flame / external heat sources
The EZIPEX Crimp™ system should not be installed in
positions where it is likely to be exposed to a naked flame. If it
is, there’s a danger the pipe could ignite and continue to burn
even after the source of the flame is extinguished. In
accordance with AS/NZS 3500 all plastic pipes for water supply
must be protected from excessive ambient heat.
Thermal expansion
EZIPEX™ pipe has a thermal expansion rate of approximately
1.5mm per metre for every 10°C change in temperature. This
expansion or contraction should be taken into consideration for
any installation and the appropriate allowances made in the
pipe layout or fixing positions. Care should be taken not to pull
the pipe tightly between fixed points during installation as the
pipe may later contract causing excessive tensile force to any
joints. This could cause a joint failure.
Heat & Pressure performance
As with all plastic pipe systems, the ability of the pipe to
withstand pressure decreases as the pipe temperature
increases. (Refer to table on page 7)

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Protection from physical damage
Due care should be taken to protect pipe and fittings from any
physical damage both prior to, during and after installation.
Possible causes of physical damage may include (but are not
limited to) sharp edges or implements, machinery, rodents,
excessive heat, long term UV exposure, radiation, mechanical
forces, corrosive agents and high levels of chlorine and other
chemicals that may have a detrimental effect on the piping
system. EZIPEX™ brass fittings should not come in contact
with treated pine.
Both during and after installation, the product should not be
damaged by grouting or stress caused by concrete stress
cracks or any other external force.
Framework Penetrations
Where EZIPEX™ pipe penetrates timber or metal framework,
appropriate precautions should be taken to protect it from
damage. Holes should be sized to allow for longitudinal
movement, expansion and contraction of pipe whilst still
securing the pipe adequately. Suitable grommets or sleeves
should be used in metal frames to protect the pipe from
abrasion.
Pipe Bending
Do not apply bending forces to joints which have already been
completed. Finish all bending operations prior to installing the
fitting.
Due care should be taken during bending to ensure that the
pipe is not damaged or kinked. If you do encounter a kinked or
damaged section of pipe, it should be cut out and replaced as a
precaution. The use of bend supports is recommended where
required.
EZIPEX™ pipe can be bent easily by hand. The radius of the
bend should be not less than 8 times the diameter of the pipe.

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Minimum Bending Radius
Nom Size Min Bending Radius (mm)
16mm
130
20mm
162
25mm
202
32mm
258
Clipping
In accordance with AS/NZS 3500, fixing spacing should be
observed for both horizontal and vertical pipe runs as outlined
on the table below.
Clipping should be by way of a recognised fixing which
complies with the requirements of AS/NZS 3500. This excludes
things such as bent-over nails, tie wire, pierced metal strapping,
etc. It is recommended that EZIPEX™ pipe is installed using a
PEX Clip to ensure secure fastening of pipe in a manner that
will not exert stress on the fittings caused by thermal expansion
and contraction of pipe.
Clip Spacing Table
Nom Size Vertical Run
Spacing (m)
Horizontal Run Spacing
(m)
16mm
1.2m
0.6m
20mm
1.4m
0.7m
25mm
1.5m
0.75m
32mm
1.7m
0.85m

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Underground
Pipe should be buried with a minimum cover of 450mm. Marker
tape should be installed approximately 150mm above the pipe.
Additional precautions, such as wrapping of the pipe, should be
taken in areas where aggressive soil conditions are known to
exist or where it may be a requirement of the local certifying
authority. The use of “Blue Metal” or “Crusher Dust” as a
backfill material is to be avoided. Ground needs to be inspected
to ensure it is not contaminated prior to burial of the pipe, and
care should be taken to ensure that post- installation
contamination does not occur.
When being buried beneath a building, the pipe should be free
of joints.
Chases, In-Slab, Under-floor
Where EZIPEX™ pipe is installed in chases or cast in slabs the
installation must be in accordance with both AS/NZS 3500 and
any other relevant building regulations or standards.
A convenient and cost effective solution for these applications
is the EZIPEX™ pipe pre-sleeved in durable and flexible
polyethylene corrugated conduit – available as part of the
EZIPEX™ piping range.
UV Exposure
All EZIPEX™ pipe should be protected from long term
exposure to UV by way of either lagging or enclosing in a
conduit.
Note: Additional thermal lagging may also be required to protect any
of the pipes from temperature extremes.

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Testing
In all installations at the completion of rough-in, pressure
testing must be carried out in accordance with AS/NZS 3500 for
water installations and in addition to any other local regulations
or requirements.
During testing, all joints should be checked for leaks, prior to
burying or concealing the EZIPEX Crimp™ system.

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Jointing instructions
1. Cut pipe
Cut pipe to desired length. Cut
should be square and free from any
swarf or burrs.
Use REMS pipe
cutter or similar blade type cutter. Do
not use a hacksaw as this creates
excessive swarf.
2. Check assembly
Ensure that the copper crimp ring
and plastic ring retainer are
assembled correctly onto the fitting.
Both can be pushed on by hand if
they have moved away from the
fitting shoulder. Witness holes
should be located toward the rear of
each barb.
3. Insert pipe
Slide pipe onto fitting until it reaches
the depth stop. Pipe should be fully
visible through the witness holes on
the crimp ring.

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4. Crimp tool positioning
Position crimping tool evenly over
the copper crimp ring. You should
leave a similar distance between the
outside of the jaw and the end of the
crimp ring at both ends. Crimp tool
should be placed at 90˚ to the
pipework.
5. Crimp
Fully close jaws of the crimping tool
to compress the copper crimp ring.
Do not
compress the plastic ring
retainer.
6.Check crimp ring
Finally, and most importantly, check
the crimp ring dimension by placing
the crimp gauge over the centre of
the indented ring on the crimp
sleeve. On a correctly crimped fitting
the crimp gauge
should pass freely
over the crimp ring at this point.

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Pressure test
At completion, carry out pressure testing. All testing should be
undertaken in accordance with AS/NZS 3500 (for water
installations) and/or in addition to any other local regulations or
requirements.